I strongly support minimizing the use of disposable plastics. I often think of schemes such as this as establishing a price on the alternative. It makes me ask

I strongly support minimizing the use of disposable plastics. I often think of schemes such as this as establishing a price on the alternative. It makes me ask how many uses I should expect out of an alternative solution. So if I think the bag I am considering purchasing (which seems to be made of an awful lot more plastic, but also promises to keep cold things cold), will last 200 uses, then it will be fairly priced at $0.05*200, or $10. In practice, if I shop around, I can find robust bags for about that price. This makes good sense to me. The replacement for plastic straws (which, again, seem to be made of less plastic than the cup or lid they are frequently used with) has a much harder economic argument. There's no way I'll ever keep a stainless straw around and unbroken for even 50 uses.